5-Chloro-3-nitro-2-(trifluoromethoxy)-4-(trifluoromethyl)pyridine
3-Methoxy-2-(trifluoromethoxy)pyridine-6-sulfonyl chloride
Methyl 2-(bromomethyl)-3-chloro-6-(difluoromethyl)pyridine-4-acetate
5-(Difluoromethyl)-4-nitro-2-(trifluoromethyl)pyridine-3-sulfonyl chloride